I need an experienced TDL developer to overhaul the standard Tally invoice both at entry-screen level and at print level. Here’s the scope: • Add new data-entry fields for additional customer details (e.g., GST-related info, alternate contact numbers) and product-specific information (batch, expiry, serial numbers) so that these values flow seamlessly from voucher entry through to the printed document. • Design a detailed, information-rich print layout that stays readable yet accommodates the extra fields without shrinking fonts or pushing content onto a second page unnecessarily. Current corporate colours, logo and statutory declarations already sit on the form—your layout must preserve those and arrange the new data logically. • Ensure all totals, taxes and existing calculations continue to work untouched; no extra arithmetic is required at this stage. • Activate the customization via TDL only, keeping the base company data intact so upgrades of Tally remain straightforward. Deliverables: 1. Well-commented TDL source files. 2. Step-by-step import instructions and any required control-centre settings. 3. One test company sample demonstrating the new fields populating correctly on screen and in the printed PDF. I’ll be available to test iteratively and can provide remote access or sample data if needed. Let me know your estimated turnaround and any similar work you’ve done with Tally Prime/ERP 9.